From d75b6bb3d71afb04071c8d79c38b6e5d168a1dab Mon Sep 17 00:00:00 2001
From: "Emil J. Tywoniak" <emil@tywoniak.eu>
Date: Sat, 4 Jan 2025 12:18:19 +0100
Subject: [PATCH] dfflibmap: allow gzipped liberty files

---
 passes/techmap/clockgate.cc | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/passes/techmap/clockgate.cc b/passes/techmap/clockgate.cc
index bdfb94170..03c436996 100644
--- a/passes/techmap/clockgate.cc
+++ b/passes/techmap/clockgate.cc
@@ -1,5 +1,6 @@
 #include "kernel/yosys.h"
 #include "kernel/ff.h"
+#include "kernel/gzip.h"
 #include "libparse.h"
 #include <optional>
 
@@ -308,13 +309,12 @@ struct ClockgatePass : public Pass {
 		if (!liberty_files.empty()) {
 			LibertyMergedCells merged;
 			for (auto path : liberty_files) {
-				std::ifstream f;
-				f.open(path.c_str());
+				std::istream& f = uncompressed(path);
 				if (f.fail())
 					log_cmd_error("Can't open liberty file `%s': %s\n", path.c_str(), strerror(errno));
 				LibertyParser p(f);
 				merged.merge(p);
-				f.close();
+				delete &f;
 			}
 			std::tie(pos_icg_desc, neg_icg_desc) =
 				find_icgs(merged.cells, dont_use_cells);